ADR121AUJZ-R2 datasheet(3/20 Pages) AD

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ADR121/ADR125/ADR127

Rev. 0 | Page 3 of 20

SPECIFICATIONS

ADR121 ELECTRICAL CHARACTERISTICS

@ TA = 25°C, VIN = 2.8 V to 18 V, IOUT = 0 mA, unless otherwise noted.

Table 1.

Parameter

Symbol

Conditions/Comments

Min

Typ

Max

Unit

OUTPUT VOLTAGE

@ 25°C

B Grade

2.497

2.5

2.503

A Grade

2.494

2.5

2.506

INITIAL ACCURACY ERROR

VOERR

@ 25°C

B Grade

−0.12

+0.12

A Grade

−0.24

+0.24

TEMPERATURE COEFFICIENT

TCVO

−40°C < TA < +125°C

B Grade

ppm/°C

A Grade

ppm/°C

DROPOUT (VOUT − VIN)

VDO

IOUT = 0 mA

300

LOAD REGULATION

−40°C < TA < +125°C; VIN = 3.0 V,

0 mA < IOUT < 5 mA

300

ppm/mA

−40°C < TA < +125°C; VIN = 3.0 V,

−2 mA < IOUT < 0 mA

300

ppm/mA

LINE REGULATION

2.8 V to 18 V

IOUT = 0 mA

−50

+50

ppm/V

PSRR

f = 1 Khz

−90

RIPPLE REJECTION

ΔVOUT/ΔVIN

f = 60 Hz

QUIESCENT CURRENT

−40°C < TA < +125°C, no load

VIN = 18 V

125

μA

VIN = 2.8 V

μA

SHORT-CIRCUIT CURRENT TO GROUND

VIN = 2.8 V

VIN = 18 V

VOLTAGE NOISE

@ 25°C

f = 10 KHz

500

nV/√Hz

0.1 Hz to 10 Hz

μV p-p

TURN-ON SETTLING TIME

To 0.1%, CL = 0.2 μF

100

μs

LONG-TERM STABILITY

1000 hours @ 25°C

150

ppm/1000 hrs

OUTPUT VOLTAGE HYSTERESIS

See the Terminology section

300

ppm

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